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As much change as we’ve seen with tools over the last 6 or 7 years, there have been as many or more improvements in their accompanying accessories. Milwaukee’s latest-gen blade is called “Double Duty Upgrade,” and though it may sound like they’re stringing together adjectives like Top Gear’s “i-Hammer Eagle Thrust,” there actually is a method to the madness.

Dan Wolgram, Sr. Product Manager at Milwaukee Electric Tool, sums up the changes in the new Milwaukee blades:

“When blades break at the tang and buckle under stress, users have to waste valuable time on the job replacing them to continue the task at hand… As a result of this frustration, Milwaukee has created several new-to-world solutions that strengthen the blade at its weakest points, delivering the longest lasting blade on the market today.”

So what does all that boil down to? Simple: there are heavy grooves stamped into the tang of the blade that connect with the tool (marked in red) and provide a more stable platform that will deform the blade less. Along the shank there is a reinforcing honeycomb-shaped pattern for added strength and rigidity. Milwaukee claims this upgrade will double the life of the current generation blades — hence the name.

Whether or not it actually gives a 2x lifespan, we feel certain the improvements can’t hurt. Double sounds a dubious claim to us, but so did putting a bump in the gullet with The AX blade, and that worked like gangbusters.

Double Duty [Milwaukee Press Release]


5 Responses to Preview: Milwaukee Double Duty Blades

  1. gary z says:

    I’m always curious of the testing that companies use to determine longevity of a product. I suspect that it is done in a controlled environment where that saw is just cutting X amount of wood, then a couple of nails and so on by someone who has never seen a job site. In the real construction world blades are used to cut, roots of trees, studs with God knows what in them, pipe, and just about anything else that gets in the way of getting the job done. Bring the test to the job site for a couple of weeks, we can show them how to test.

  2. Dreamcatcher says:

    I gotta agree with Gary Z… only in the field can you really test the tools. Even if they are testing the blade by cutting nails, they are probably just cutting modern cheapo china-made wire nails. Ever try to sawzall out a header held in with old school hardened 20d spiral shank nails? How about a super saturated pressure treated 8×8? Thick aluminum? While we are on the subject of sawzall blades; when are they ever going to come out with a blade that is stiff and straight so I can cut a nice neat line through a stud to make it into a cripple or put one perfectly straight slice through a heavy timber without going off course on the opposite side. Seems like half the time I am struggling to bend the blade 90 degrees and the other half I am struggling to cut perfectly straight. Anyone in the remod. trade knows what I mean.

  3. Blair says:


    DeWalt has a new blade out that claims to be both thicker, and wider, which should help reduce the “flopping” blades sem to get after a bit of heavy use.
    I haven’t tried them yet, but plan to pick a couple up next time I need blades.

    PS: They also claim to have twice the life of regular blades.

  4. gary z says:

    I think the saw has something to do with it too. More to the point, having a good variable speed to slow the saw down a bit when doing finer cuts like Dreamcatcher is talking about.

  5. Toolfreak says:

    I haven’t had any problems with blades breaking. The problem I find is that sawzall blades, even bi-metal ones, aren’t as hard as they need to be for long life when cutting through hardened metal, like Grade 8 bolts and such. Even the best blades only cut through hardened metal a few times before they are dull.

    Come out with a diamond blade with teeth, that cuts through hardened metal fast. That’ll be an improvement we can use.

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